8. Of or pertaining to the lower or animalnature, as contrasted with the higher or moralpowers, or that which is spiritual; being in a state of nature; unregenerate. The natural man receiveth not the things of the spirit of god. (1 cor. Ii. 14)

9. (Science: mathematics) Belonging to, to be taken in, or referred to, some system, in which the base is 1; said or certain functions or numbers; as, natural numbers, those commencing at 1; natural sines, cosines, etc, those taken in arcs whose radii are 1.